Describe the development of Earth's modern atmosphere from its formation to the present day

What will be an ideal response?


Answer: The first atmosphere was devoid of oxygen and would be toxic to life. Over time, the atmosphere evolved. The ozone layer prevented most ultraviolet energy from reaching the surface. This allowed plants to do photosynthesis, which is the source for oxygen in our present atmosphere.

Environmental & Atmospheric Sciences

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What is the link between weathering and making sediment?

What will be an ideal response?

Environmental & Atmospheric Sciences

Bending of water with depth causes a net transport of water known as ____________________

Fill in the blank with correct word

Environmental & Atmospheric Sciences

The zone of ____________________ is the portion of a glacier where additions exceed losses. Fill in the blank(s) with the appropriate word(s)

Environmental & Atmospheric Sciences

Secondary sewage treatment is distinguished form primary sewage treatment by the ________

A) addition of bacteria to process organic contaminants B) aeration of liquid effluent following chlorination C) chlorination of the liquid effluent D) removal of inorganic nutrients from the liquid effluent E) separation of the suspended solids from the liquid effluent

Environmental & Atmospheric Sciences